Toshiba GR200 Series - 2.13.2 Unblocking overreach protection (UOP); 2.13.3 Blocking overreach protection (BOP)

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 208 -
From Terminal 1
Permission signals received:
From Terminal 2
DEF-ECHO_CS-A
=1
=1
=1
=1
=1
=1
&
&
&
&
1
810000EBBE DEF-ECHO BLOCK
ECHO1_CONDITION
&
ECHO2_CONDITION
&
&
&
&
&
&
&
&
&
≥1
0 t
0.05s
t 0
0.2s
1
&
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
8000001B6E
0 t
0.05s
t 0
0.2s
1
&
0 t
0.05s
t 0
0.2s
1
&
8100001BE
8000001B6F
DEF-ECHO_CS-B
DEF-ECHO_CS-C
On
DEF-ECHO
≥1
DEFCAR
UOP
POP
0 t
0.05s
t 0
0.2s
1
&
0 t
0.05s
t 0
0.2s
1
&
0 t
0.05s
t 0
0.2s
1
&
≥1
≥1
≥1
=1
External DEFCAR-R1
Integral DEFCAR-R1-A
Integral DEFCAR-R1-B
Integral DEFCAR-R1-C
=1
External DEFCAR-R2
≥1
≥1
≥1
Integral DEFCAR-R2-A
Integral DEFCAR-R2-B
Integral DEFCAR-R2-C
Figure 2.13-7 ECHO logic
2.13.2 Unblocking overreach protection (UOP)
DEFCAR sends a trip block signal in UOP. Thus, UOP stops to send a trip block signal for an
internal fault. Settings and operation of UOP is the same as POP.
2.13.3 Blocking overreach protection (BOP)
BOP send a trip block signal except for an internal fault. When DEFCF operates, BOP issues
a trip single unless a trip blocking single is received.
The delayed pick-up timer [TCHD-DEF] is provided to allow for the transmission delay of the
trip block signal from the opposite terminal. Therefore, user should set a time depending on
the delay of communication channel.
Setting [TCHD-DEF] = maximum signal transmission delay time†+ 5ms
†Note: Including operation time of circuits of Binary IO modules; these circuits are used
to send/receive a trip blocking signal.
For setting [TREBK-DEF], see section 2.13.1.